Index: xmlsitemap.js
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap.js	(date 1464190546000)
+++ xmlsitemap.js	(revision )
@@ -14,6 +14,9 @@
       var priority = $('#edit-xmlsitemap-priority option:selected').text();
       vals.push(Drupal.t('Priority: @value', { '@value': priority }));
 
+      var changefreq = $('#edit-xmlsitemap-changefreq option:selected').text();
+      vals.push(Drupal.t('Change frequency: @value', { '@value': changefreq }));
+
       return vals.join('<br />');
     });
   }
Index: xmlsitemap_taxonomy/xmlsitemap_taxonomy.module
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap_taxonomy/xmlsitemap_taxonomy.module	(date 1464190546000)
+++ xmlsitemap_taxonomy/xmlsitemap_taxonomy.module	(revision )
@@ -169,6 +169,9 @@
     'priority' => $settings['priority'],
     'priority_default' => $settings['priority'],
     'priority_override' => 0,
+    'changefreq' => $settings['changefreq'],
+    'changefreq_default' => $settings['changefreq'],
+    'changefreq_override' => 0,
   );
 
   // The following values must always be checked because they are volatile.
Index: xmlsitemap_user/xmlsitemap_user.module
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap_user/xmlsitemap_user.module	(date 1464190546000)
+++ xmlsitemap_user/xmlsitemap_user.module	(revision )
@@ -144,6 +144,9 @@
     'priority' => $settings['priority'],
     'priority_default' => $settings['priority'],
     'priority_override' => 0,
+    'changefreq' => $settings['changefreq'],
+    'changefreq_default' => $settings['changefreq'],
+    'changefreq_override' => 0,
   );
 
   // The following values must always be checked because they are volatile.
Index: xmlsitemap.install
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap.install	(date 1464190546000)
+++ xmlsitemap.install	(revision )
@@ -231,6 +231,13 @@
         'not null' => TRUE,
         'default' => 0,
       ),
+      'changefreq_override' => array(
+        'description' => 'A boolean that if TRUE means that the changefreq field has been overridden from its default value.',
+        'type' => 'int',
+        'size' => 'tiny',
+        'not null' => TRUE,
+        'default' => 0,
+      ),
       'changecount' => array(
         'description' => 'The number of times this item has been changed. Used to help calculate the next changefreq value.',
         'type' => 'int',
@@ -567,4 +574,12 @@
       xmlsitemap_sitemap_save($sitemap);
     }
   }
+}
+
+/**
+ * Add {xmlsitemap}.changefreq_override column.
+ */
+function xmlsitemap_update_7205() {
+  $schema = xmlsitemap_schema();
+  db_add_field('xmlsitemap', 'changefreq_override', $schema['xmlsitemap']['fields']['changefreq_override']);
 }
Index: xmlsitemap.generate.inc
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap.generate.inc	(date 1464190546000)
+++ xmlsitemap.generate.inc	(revision )
@@ -169,7 +169,7 @@
   $link_count = 0;
 
   $query = db_select('xmlsitemap', 'x');
-  $query->fields('x', array('id', 'type', 'subtype', 'loc', 'lastmod', 'changefreq', 'changecount', 'priority', 'language', 'access', 'status'));
+  $query->fields('x', array('id', 'type', 'subtype', 'loc', 'lastmod', 'changefreq', 'changefreq_override', 'changecount', 'priority', 'language', 'access', 'status'));
   $query->condition('x.access', 1);
   $query->condition('x.status', 1);
   $query->orderBy('x.language', 'DESC');
@@ -217,11 +217,13 @@
       // with a short changefreq but updated two years ago show decay.
       // We use abs() here just incase items were created on this same cron run
       // because lastmod would be greater than REQUEST_TIME.
+      if (empty($link['changefreq_override'])) {
-      $link['changefreq'] = (abs(REQUEST_TIME - $link['lastmod']) + $link['changefreq']) / 2;
-    }
+        $link['changefreq'] = (abs(REQUEST_TIME - $link['lastmod']) + $link['changefreq']) / 2;
+      }
-    if (!empty($output_elements['changefreq']) && $link['changefreq']) {
-      $element['changefreq'] = xmlsitemap_get_changefreq($link['changefreq']);
     }
+    if (!empty($output_elements['changefreq'])) {
+      $element['changefreq'] = xmlsitemap_get_changefreq($link['changefreq'] ?: XMLSITEMAP_FREQUENCY_DEFAULT);
+    }
     if (!empty($output_elements['priority']) && isset($link['priority']) && $link['priority'] != 0.5) {
       // Don't output the priority value for links that have 0.5 priority. This
       // is the default 'assumed' value if priority is not included as per the
@@ -545,6 +547,7 @@
   if ($save_custom) {
     $query->condition('status_override', 0);
     $query->condition('priority_override', 0);
+    $query->condition('changefreq_override', 0);
   }
 
   return $query->execute();
Index: xmlsitemap_menu/xmlsitemap_menu.module
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap_menu/xmlsitemap_menu.module	(date 1464190546000)
+++ xmlsitemap_menu/xmlsitemap_menu.module	(revision )
@@ -254,6 +254,9 @@
     'priority' => $settings['priority'],
     'priority_default' => $settings['priority'],
     'priority_override' => 0,
+    'changefreq' => $settings['changefreq'],
+    'changefreq_default' => $settings['changefreq'],
+    'changefreq_override' => 0,
   );
 
   // The following values must always be checked because they are volatile.
Index: xmlsitemap_user/xmlsitemap_user.test
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap_user/xmlsitemap_user.test	(date 1464190546000)
+++ xmlsitemap_user/xmlsitemap_user.test	(revision )
@@ -22,7 +22,7 @@
     parent::setUp($modules);
 
     // Save the user settings before creating the users.
-    xmlsitemap_link_bundle_settings_save('user', 'user', array('status' => 1, 'priority' => 0.5));
+    xmlsitemap_link_bundle_settings_save('user', 'user', array('status' => 1, 'priority' => 0.5, 'changefreq' => 3600));
 
     // Create the users
     $this->admin_user = $this->drupalCreateUser(array('administer users', 'administer permissions', 'administer xmlsitemap'));
Index: xmlsitemap.admin.inc
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap.admin.inc	(date 1464190546000)
+++ xmlsitemap.admin.inc	(revision )
@@ -499,6 +499,7 @@
   $priorities = xmlsitemap_get_priority_options(NULL, FALSE);
   $statuses = xmlsitemap_get_status_options(NULL);
   $destination = drupal_get_destination();
+  $changefreqs = xmlsitemap_get_changefreq_options();
 
   $rows = array();
   $totals = array('total' => 0, 'indexed' => 0, 'visible' => 0);
@@ -520,6 +521,7 @@
     }
     $row[] = $statuses[$bundle_info['xmlsitemap']['status'] ? 1 : 0];
     $row[] = $priorities[number_format($bundle_info['xmlsitemap']['priority'], 1)];
+    $row[] = $changefreqs[$bundle_info['xmlsitemap']['changefreq']];
     $row[] = $status['total'];
     $row[] = $status['indexed'];
     $row[] = $status['visible'];
@@ -531,6 +533,7 @@
       isset($entity_info['bundle label']) ? $entity_info['bundle label'] : '',
       t('Inclusion'),
       t('Priority'),
+      t('Change frequency'),
       t('Available'),
       t('Indexed'),
       t('Visible'),
@@ -538,7 +541,7 @@
     $rows[] = array(
       array(
         'data' => t('Totals'),
-        'colspan' => 3,
+        'colspan' => 4,
         'header' => TRUE,
       ),
       array(
@@ -629,6 +632,17 @@
       ),
     ),
   );
+  $form['xmlsitemap']['changefreq'] = array(
+    '#type' => 'select',
+    '#title' => t('Default change frequency'),
+    '#options' => xmlsitemap_get_changefreq_options(),
+    '#default_value' => $bundle_info['changefreq'],
+    '#states' => array(
+      'invisible' => array(
+        'select[name="xmlsitemap[status]"]' => array('value' => '0'),
+      ),
+    ),
+  );
 
   $form += array('#submit' => array());
   array_unshift($form['#submit'], 'xmlsitemap_link_bundle_settings_form_submit');
@@ -699,6 +713,9 @@
     'priority' => $bundle_info['priority'],
     'priority_default' => $bundle_info['priority'],
     'priority_override' => 0,
+    'changefreq' => $bundle_info['changefreq'],
+    'changefreq_default' => $bundle_info['changefreq'],
+    'changefreq_override' => 0,
   );
 
   $form['xmlsitemap'] = array(
@@ -706,7 +723,7 @@
     '#tree' => TRUE,
     '#title' => t('XML sitemap'),
     '#collapsible' => TRUE,
-    '#collapsed' => !$link['status_override'] && !$link['priority_override'],
+    '#collapsed' => !$link['status_override'] && !$link['priority_override'] && !$link['changefreq_override'],
     '#access' => user_access('administer xmlsitemap') || xmlsitemap_link_bundle_access($bundle_info),
     '#group' => 'additional_settings',
     '#attached' => array(
@@ -785,6 +802,35 @@
     '#value' => $link['priority_override'],
   );
 
+  // Changefreq field
+  $form['xmlsitemap']['changefreq'] = array(
+    '#type' => 'select',
+    '#title' => t('Change frequency'),
+    '#options' => xmlsitemap_get_changefreq_options($link['changefreq_default']),
+    '#default_value' => $link['changefreq_override'] ? $link['changefreq'] : 'default',
+    '#description' => t('The change frequency of this URL.'),
+    '#states' => array(
+      'invisible' => array(
+        'select[name="xmlsitemap[status]"]' => array('value' => '0'),
+      ),
+    ),
+  );
+  if (!$link['status_default']) {
+    // If the default status is excluded, add a visible state on the include
+    // override option.
+    $form['xmlsitemap']['changefreq']['#states']['visible'] = array(
+      'select[name="xmlsitemap[status]"]' => array('value' => '1'),
+    );
+  }
+  $form['xmlsitemap']['changefreq_default'] = array(
+    '#type' => 'value',
+    '#value' => $link['changefreq_default'],
+  );
+  $form['xmlsitemap']['changefreq_override'] = array(
+    '#type' => 'value',
+    '#value' => $link['changefreq_override'],
+  );
+
   // Other persistent fields.
   //$form['xmlsitemap']['lastmod'] = array(
   //  '#type' => 'value',
@@ -872,6 +918,37 @@
   }
 
   $options += $statuses;
+
+  return $options;
+}
+
+
+/**
+ * Get a list of change frequency options.
+ *
+ * @param $default
+ *   Include a 'default' option.
+ * @return
+ *   An array of options.
+ *
+ * @see xmlsitemap_get_changefreq_values().
+ *   The values are translated here.
+ */
+function xmlsitemap_get_changefreq_options($default = NULL) {
+  $options = array();
+
+  $changefreqs = xmlsitemap_get_changefreq_values();
+  foreach ($changefreqs as $key => $label) {
+    $changefreqs[$key] = t(drupal_ucfirst($label));
+  }
+
+  if (isset($default)) {
+    $default = (int)$default;
+    $options['default'] = t('Default (@value)', array('@value' => $changefreqs[$default]));
+  }
+
+  // Add the rest of the options.
+  $options += $changefreqs;
 
   return $options;
 }
Index: xmlsitemap_node/xmlsitemap_node.module
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap_node/xmlsitemap_node.module	(date 1464190546000)
+++ xmlsitemap_node/xmlsitemap_node.module	(revision )
@@ -112,6 +112,24 @@
 }
 
 /**
+ * Implements hook_xmlsitemap_element_alter().
+ */
+function xmlsitemap_node_xmlsitemap_element_alter(array &$element, array $link, $sitemap) {
+  if ($link['type'] == 'node') {
+    if ($link['changefreq_override']) {
+      $element['changefreq'] = xmlsitemap_get_changefreq($link['changefreq']);
+    }
+    else {
+      module_load_include('inc', 'xmlsitemap', 'xmlsitemap.admin');
+      $settings = xmlsitemap_link_bundle_load('node', $link['subtype']);
+      $changefreqs = xmlsitemap_get_changefreq_options();
+
+      $element['changefreq'] = drupal_strtolower($changefreqs[$settings['changefreq']]);
+    }
+  }
+}
+
+/**
  * Implements hook_form_FORM_ID_alter().
  *
  * @see node_type_form()
@@ -188,12 +206,20 @@
     'priority' => $settings['priority'],
     'priority_default' => $settings['priority'],
     'priority_override' => 0,
+    'changefreq' => $settings['changefreq'],
+    'changefreq_default' => $settings['changefreq'],
+    'changefreq_override' => 0,
   );
 
-  // Always recalculate changefreq and changecount.
+  // Only recalculate changefreq and changecount when not overridden.
   $timestamps = xmlsitemap_node_get_timestamps($node);
+  if ($node->xmlsitemap['changefreq_override'] == 0) {
-  $node->xmlsitemap['changefreq'] = $node->nid ? xmlsitemap_calculate_changefreq($timestamps) : 0;
-  $node->xmlsitemap['changecount'] = $node->nid ? count($timestamps) - 1 : 0;
+    $node->xmlsitemap['changefreq'] = $node->nid ? xmlsitemap_calculate_changefreq($timestamps) : 0;
+    $node->xmlsitemap['changecount'] = $node->nid ? count($timestamps) - 1 : 0;
+  }
+  else {
+    $node->xmlsitemap['changecount'] = 0;
+  }
 
   // Node access must be reset since it a user may have changed published status, etc.
   //$access = &drupal_static('node_access');
Index: xmlsitemap.module
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap.module	(date 1464190546000)
+++ xmlsitemap.module	(revision )
@@ -25,6 +25,7 @@
 define('XMLSITEMAP_FREQUENCY_DAILY', 86400); // 60 * 60 * 24
 define('XMLSITEMAP_FREQUENCY_HOURLY', 3600); // 60 * 60
 define('XMLSITEMAP_FREQUENCY_ALWAYS', 60);
+define('XMLSITEMAP_FREQUENCY_DEFAULT', XMLSITEMAP_FREQUENCY_MONTHLY);
 
 /**
  * Short lastmod timestamp format.
@@ -586,6 +587,7 @@
     'priority' => XMLSITEMAP_PRIORITY_DEFAULT,
     'priority_override' => 0,
     'changefreq' => 0,
+    'changefreq_override' => 0,
     'changecount' => 0,
     'language' => LANGUAGE_NONE,
   );
@@ -1036,7 +1038,10 @@
     if ($settings['priority'] != $old_settings['priority']) {
       xmlsitemap_link_update_multiple(array('priority' => $settings['priority']), array('type' => $entity, 'subtype' => $bundle, 'priority_override' => 0));
     }
+    if ($settings['changefreq'] != $old_settings['changefreq']) {
+      xmlsitemap_link_update_multiple(array('changefreq' => $settings['changefreq']), array('type' => $entity, 'subtype' => $bundle, 'changefreq_override' => 0));
-  }
+    }
+  }
 
   variable_set("xmlsitemap_settings_{$entity}_{$bundle}", $settings);
   cache_clear_all('xmlsitemap:link_info:', 'cache', TRUE);
@@ -1085,6 +1090,7 @@
   $info += array(
     'status' => XMLSITEMAP_STATUS_DEFAULT,
     'priority' => XMLSITEMAP_PRIORITY_DEFAULT,
+    'changefreq' => XMLSITEMAP_FREQUENCY_DEFAULT,
   );
   return $info;
 }
@@ -1164,7 +1170,7 @@
     return FALSE;
   }
 
-  foreach (xmlsitemap_get_changefreq_options() as $value => $frequency) {
+  foreach (xmlsitemap_get_changefreq_values() as $value => $frequency) {
     if ($interval <= $value) {
       return $frequency;
     }
@@ -1337,7 +1343,7 @@
 
 function xmlsitemap_process_form_link_options($form, &$form_state) {
   $link = &$form_state['values']['xmlsitemap'];
-  $fields = array('status' => XMLSITEMAP_STATUS_DEFAULT, 'priority' => XMLSITEMAP_PRIORITY_DEFAULT);
+  $fields = array('status' => XMLSITEMAP_STATUS_DEFAULT, 'priority' => XMLSITEMAP_PRIORITY_DEFAULT, 'changefreq' => XMLSITEMAP_FREQUENCY_DEFAULT);
 
   foreach ($fields as $field => $default) {
     if ($link[$field] === 'default') {
@@ -1381,10 +1387,12 @@
 }
 
 /**
- * @todo Document this function.
- * @todo Make these translatable
+ * Get a list of change frequency values.
+ *
+ * @return
+ *   An array of options.
  */
-function xmlsitemap_get_changefreq_options() {
+function xmlsitemap_get_changefreq_values() {
   return array(
     XMLSITEMAP_FREQUENCY_ALWAYS => 'always',
     XMLSITEMAP_FREQUENCY_HOURLY => 'hourly',
Index: xmlsitemap_node/xmlsitemap_node.test
IDEA additional info:
Subsystem: com.intellij.openapi.diff.impl.patch.CharsetEP
<+>UTF-8
===================================================================
--- xmlsitemap_node/xmlsitemap_node.test	(date 1464190546000)
+++ xmlsitemap_node/xmlsitemap_node.test	(revision )
@@ -24,7 +24,7 @@
 
     $this->admin_user = $this->drupalCreateUser(array('administer nodes', 'bypass node access', 'administer content types', 'administer xmlsitemap'));
     $this->normal_user = $this->drupalCreateUser(array('create page content', 'edit any page content', 'access content', 'view own unpublished content'));
-    xmlsitemap_link_bundle_settings_save('node', 'page', array('status' => 1, 'priority' => 0.5));
+    xmlsitemap_link_bundle_settings_save('node', 'page', array('status' => 1, 'priority' => 0.5, 'changefreq' => 3600));
   }
 
   function testNodeSettings() {